OpenAI Agents SDK changelog

Every change to OpenAI Agents SDK that Modelpeers has recorded, newest first, each with the source it came from. The record starts Oct 20, 2026.

All (1)Breaking changes (1)

October 2026

OpenAI Agents SDK

Developer tool at OpenAI

Breaking change1w

Agents SDK for JavaScript removes the Runloop sandbox provider

Version 0.21.0 of @openai/agents-extensions removes the Runloop sandbox provider and its public API. OpenAI links a migration guide to supported alternatives.

Who is affected:: JavaScript apps that run Agents SDK sandboxes on Runloop.
Action needed:: Move to another sandbox provider before upgrading to 0.21.0.

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